CVE-2026-34828

listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, a session management vulnerability allows previously issued authenticated sessions to remain valid after sensitive account security changes, specifically password reset and password change. As a result, an attacker who has already obtained a valid session cookie can retain access to the account even after the victim changes or resets their password. This weakens account recovery and session security guarantees. This issue has been patched in version 6.1.0.

Score
CVSS 3.1 7.1 High
Status
Analyzed - security-advisories@github.com
Published
2026-04-02
Last modified
2026-04-03
Weaknesses
CWE-613

Affected products

References